docs: def _get_fault_dip_term(self, C, rup):
          """
          Returns the fault dip term, defined in equation 24
          """
          if rup.mag < 4.5:
              return C["c19"] * rup.dip
          elif rup.mag > 5.5:
              return 0.0
          else:
              return C["c19"] * (5.5 - rup.mag) * rup.dip